About this trial
Aim:
More insight in pathogenesis of IBS and IBD. Samples are collected in context of an European research project.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Irritable Bowel Syndrome (IBS) (ROME III criteria)
No obvious organic explanation for the IBS symptoms
Medication which affects the gastrointestinal motility or perception should be stopped at least 24 hours before the study
diagnosis of ulcerative colitis (Confirmed by at least one sigmoidoscopy)
Disqualifiers
co-morbidity: severe kidney- and/or liver disease or thyroid abnormalities and impaired clotting
Abdominal chirurgy (except for an uncomplicated appendectomy)
Trial design
Single group
Treatments tested in this trial
Sample collection
Other interventionCollection of blood, feces samples, sample of nasal mucosa and biopsies (rectum and colon descendens), questionnaires and performance of rectal sensitivity measurement (barostat), MR scan of brain and transit measurement of colon
Treatment groups
Trial outcomes
Primary outcomes
differences in visceral sensitivity in different study groups (Visceral sensitivity will me measured by performing a rectal barostat test)
Visceral sensitivity will me measured by performing a rectal barostat test
Secondary outcomes
immune activity (measuring release of mest cell mediators in rectal biopsies, measuring parameters of immune activity in blood)
measuring release of mest cell mediators in rectal biopsies, measuring parameters of immune activity in blood (for example by stimulating Peripheral Blood Mononuclear Cells)